56613136 has 20 divisors (see below), whose sum is σ = 109816012. Its totient is φ = 28273536.

The previous prime is 56613131. The next prime is 56613173. The reversal of 56613136 is 63131665.

It can be written as a sum of positive squares in 2 ways, for example, as 32993536 + 23619600 = 5744^2 + 4860^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56613098 and 56613107.

It is not an unprimeable number, because it can be changed into a prime (56613131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17950 + ... + 20866.

Almost surely, 2^56613136 is an apocalyptic number.

It is an amenable number.

56613136 is a deficient number, since it is larger than the sum of its proper divisors (53202876).

56613136 is a wasteful number, since it uses less digits than its factorization.

56613136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4138 (or 4132 counting only the distinct ones).

The product of its digits is 9720, while the sum is 31.

The square root of 56613136 is about 7524.1701203521. The cubic root of 56613136 is about 383.9774654021.

The spelling of 56613136 in words is "fifty-six million, six hundred thirteen thousand, one hundred thirty-six".